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Bug 1859554

Summary:	Secondary LDAP group go missing from 'id' command on RHEL 7.8 with sssd-1.16.2-37.el7_8.1 [rhel-7.9.z]
Product:	Red Hat Enterprise Linux 7	Reporter:	Akshay Sakure <asakure>
Component:	sssd	Assignee:	Tomas Halman <thalman>
Status:	CLOSED ERRATA	QA Contact:	sssd-qe <sssd-qe>
Severity:	high	Docs Contact:
Priority:	high
Version:	7.8	CC:	atikhono, bjarolim, grajaiya, ipedrosa, jhrozek, jreznik, kbanerje, lslebodn, mniranja, msauton, mzidek, pbrezina, pdwyer, rcain, sbose, sgoveas, sssd-qe, tbordaz, thalman, tmihinto, tscherf
Target Milestone:	rc	Keywords:	TestCannotAutomate, Triaged, ZStream
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:	sync-to-jira
Fixed In Version:	sssd-1.16.5-10.el7_9.5	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2020-09-29 21:18:32 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Akshay Sakure 2020-07-22 12:49:50 UTC

Description of problem:
Secondary LDAP group go missing from 'id' command on RHEL 7.8 with sssd-1.16.2-37.el7_8.1

Version-Release number of selected component (if applicable):
sssd-1.16.2-37.el7_8.1.x86_64

How reproducible:
Always on RHEL 7.8

Steps to Reproduce:
1. Configure sssd and point it to LDAP server with 'id_provider = ldap' mode.
2. Run 'id ldapusername' command.
3. Secondary groups would go missing from 'id' output after 25-30 mins.

Actual results:
Secondary groups go missing from 'id' output after 25-30 mins.

Expected results:
Secondary groups should always be visible in 'id' output.

Additional info:
Same SSSD configuration works very well with older version of sssd on RHEL 7.7 (tested with sssd-1.16.4-21.el7.x86_64).

Comment 6 Paweł Poławski 2020-08-04 21:20:02 UTC

Upstream ticket:
https://github.com/SSSD/sssd/issues/5261

Comment 25 Alexey Tikhonov 2020-08-18 15:21:46 UTC

Accepted 1-16 upstream PR: https://github.com/SSSD/sssd/pull/5281

Comment 43 Niranjan Mallapadi Raghavender 2020-08-28 14:14:01 UTC

Versions:

Server Configuration:
=====================

1. Setup openldap-server such that there are spaces in member entry

dn: cn=group1
member: cn=user1, ou=people, dc=example,dc=com
memberUid: user1
gidNumber: 20001
objectClass: top
objectClass: groupOfNames
objectClass: posixGroup
structuralObjectClass: posixGroup
cn: group1
entryUUID: e59182d0-75a3-103a-9b63-653597a2aaa1
creatorsName: cn=manager
createTimestamp: 20200818133851Z
entryCSN: 20200818133851.585572Z#000000#000#000000
modifiersName: cn=manager
modifyTimestamp: 20200818133851Z


# group1, groups, example.com
dn: cn=group1,ou=groups,dc=example,dc=com
member: cn=user1, ou=people, dc=example,dc=com
memberUid: user1
gidNumber: 20001
objectClass: top
objectClass: groupOfNames
objectClass: posixGroup
cn: group1



2. Create a posix user1 entry as shown below in ldap server

# user1, people, example.com
dn: cn=user1,ou=people,dc=example,dc=com
cn: user1
objectClass: shadowAccount
objectClass: posixAccount
objectClass: organizationalPerson
loginShell: /bin/bash
uidNumber: 10001
gidNumber: 10001
gecos: user1
sn: user1
homeDirectory: /home/user1
uid: user1


Client configuration:


[sssd]
config_file_version = 2
services = nss,pam
domains = LDAP
debug_level = 9

[domain/ldap]
id_provider = ldap
cache_credentials = true
ldap_uri = ldap://vm-idm-009.lab.eng.pnq.redhat.com
ldap_search_base = dc=example,dc=com
ldap_group_search_base = ou=groups,dc=example,dc=com
ldap_tls_cacertdir = /etc/openldap/certs
ldap_default_bind_dn = cn=manager
ldap_default_authtok = xxxxx
ldap_default_authtok_type = password
ldap_schema = rfc2307bis
debug_level = 9


[nss]
filter_groups = root
filter_users = root
debug_level = 9

[pam]
debug_level = 9

1. Remove cache , restart sssd and verify group1 shows up in id command. 

sytemctl stop sssd; rm -rf /var/lib/sss/{mc,db}/*; systemctl start sssd 

[root@vm-idm-012 sssd]# getent group -s sss group1
group1:*:20001:user1
[root@vm-idm-012 sssd]# id user1
uid=10001(user1) gid=10001(user1) groups=10001(user1),20001(group1)

Logs:

(2020-08-28 19:42:52): [be[ldap]] [sdap_get_generic_ext_step] (0x0400): calling ldap_search_ext with [(&(cn=group1)(objectClass=posixGroup)(cn=*)(&(gidNumber=*)(!(gidNumber=0))))][ou=groups,dc=example,dc=com].
(2020-08-28 19:42:52): [be[ldap]] [sdap_get_generic_ext_step] (0x1000): Requesting attrs: [objectClass]
(2020-08-28 19:42:52): [be[ldap]] [sdap_get_generic_ext_step] (0x1000): Requesting attrs: [cn]
(2020-08-28 19:42:52): [be[ldap]] [sdap_get_generic_ext_step] (0x1000): Requesting attrs: [userPassword]
(2020-08-28 19:42:52): [be[ldap]] [sdap_get_generic_ext_step] (0x1000): Requesting attrs: [gidNumber]
(2020-08-28 19:42:52): [be[ldap]] [sdap_get_generic_ext_step] (0x1000): Requesting attrs: [member]
(2020-08-28 19:42:52): [be[ldap]] [sdap_get_generic_ext_step] (0x1000): Requesting attrs: [modifyTimestamp]
(2020-08-28 19:42:52): [be[ldap]] [sdap_get_generic_ext_step] (0x1000): Requesting attrs: [modifyTimestamp]
(2020-08-28 19:42:52): [be[ldap]] [sdap_get_generic_ext_step] (0x2000): ldap_search_ext called, msgid = 4
(2020-08-28 19:42:52): [be[ldap]] [sdap_op_add] (0x2000): New operation 4 timeout 6
(2020-08-28 19:42:52): [be[ldap]] [sdap_process_result] (0x2000): Trace: sh[0x560ff3a115b0], connected[1], ops[0x560ff3a2ac50], ldap[0x560ff3a09630]
(2020-08-28 19:42:52): [be[ldap]] [sdap_process_message] (0x4000): Message type: [LDAP_RES_SEARCH_ENTRY]
(2020-08-28 19:42:52): [be[ldap]] [sdap_parse_entry] (0x1000): OriginalDN: [cn=group1,ou=groups,dc=example,dc=com].
(2020-08-28 19:42:52): [be[ldap]] [sdap_parse_range] (0x2000): No sub-attributes for [member]
(2020-08-28 19:42:52): [be[ldap]] [sdap_parse_range] (0x2000): No sub-attributes for [gidNumber]
(2020-08-28 19:42:52): [be[ldap]] [sdap_parse_range] (0x2000): No sub-attributes for [objectClass]
(2020-08-28 19:42:52): [be[ldap]] [sdap_parse_range] (0x2000): No sub-attributes for [cn]
(2020-08-28 19:42:52): [be[ldap]] [sdap_parse_range] (0x2000): No sub-attributes for [modifyTimestamp]
(2020-08-28 19:42:52): [be[ldap]] [sdap_process_result] (0x2000): Trace: sh[0x560ff3a115b0], connected[1], ops[0x560ff3a2ac50], ldap[0x560ff3a09630]
(2020-08-28 19:42:52): [be[ldap]] [sdap_process_message] (0x4000): Message type: [LDAP_RES_SEARCH_RESULT]
(2020-08-28 19:42:52): [be[ldap]] [sdap_get_generic_op_finished] (0x0400): Search result: Success(0), no errmsg set
(2020-08-28 19:42:52): [be[ldap]] [sdap_op_destructor] (0x2000): Operation 4 finished
(2020-08-28 19:42:52): [be[ldap]] [sdap_get_groups_process] (0x0400): Search for groups, returned 1 results.
(2020-08-28 19:42:52): [be[ldap]] [sdap_nested_group_hash_insert] (0x4000): Inserting [cn=group1,ou=groups,dc=example,dc=com] into hash table [groups]
(2020-08-28 19:42:52): [be[ldap]] [sdap_nested_group_process_send] (0x2000): About to process group [cn=group1,ou=groups,dc=example,dc=com]
(2020-08-28 19:42:52): [be[ldap]] [sysdb_cache_search_users] (0x2000): Search users with filter: (&(objectCategory=user)(originalDN=cn=user1,ou=people,dc=example,dc=com))
(2020-08-28 19:42:52): [be[ldap]] [sysdb_cache_search_users] (0x2000): No such entry
(2020-08-28 19:42:52): [be[ldap]] [sysdb_cache_search_groups] (0x2000): Search groups with filter: (&(objectCategory=group)(originalDN=cn=user1,ou=people,dc=example,dc=com))
(2020-08-28 19:42:52): [be[ldap]] [sysdb_cache_search_groups] (0x2000): No such entry
(2020-08-28 19:42:52): [be[ldap]] [sdap_nested_group_split_members] (0x4000): [cn=user1, ou=people, dc=example,dc=com] is a user
(2020-08-28 19:42:52): [be[ldap]] [sdap_nested_group_process_send] (0x2000): Looking up 1/1 members of group [cn=group1,ou=groups,dc=example,dc=com]
(2020-08-28 19:42:52): [be[ldap]] [sdap_nested_group_process_send] (0x2000): Members of group [cn=group1,ou=groups,dc=example,dc=com] will be processed individually
(2020-08-28 19:42:52): [be[ldap]] [sdap_print_server] (0x2000): Searching 10.65.206.143:389
(2020-08-28 19:42:52): [be[ldap]] [sdap_get_generic_ext_step] (0x0400): calling ldap_search_ext with [(objectclass=posixAccount)][cn=user1, ou=people, dc=example,dc=com].
(2020-08-28 19:42:52): [be[ldap]] [sdap_get_generic_ext_step] (0x1000): Requesting attrs: [objectClass]
(2020-08-28 19:42:52): [be[ldap]] [sdap_get_generic_ext_step] (0x1000): Requesting attrs: [uid]
(2020-08-28 19:42:52): [be[ldap]] [sdap_get_generic_ext_step] (0x2000): ldap_search_ext called, msgid = 5
(2020-08-28 19:42:52): [be[ldap]] [sdap_op_add] (0x2000): New operation 5 timeout 6

Comment 57 errata-xmlrpc 2020-09-29 21:18:32 UTC

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (sssd bug fix and enhancement update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2020:4074

Comment 58 Pavel Březina 2020-10-02 10:20:32 UTC

Pushed PR: https://github.com/SSSD/sssd/pull/5262

* `master`
    * 88631392e9172ae4fa3e411398516a2f39f0060e - intg: allow member DN to have a different case
    * 50d0d154cedb6915ab321b47c40851c40e91cf41 - ldap: use member DN to create ghost user hash table
    * fe0f1e64e8a77dadde699495c7eb368ce61ac992 - UTIL: Use sss_sanitize_dn where we deal with DN 2
    * 21b9417e14ce35a2548c309642325ac43103d51e - UTIL: Use sss_sanitize_dn where we deal with DN
    * 093061f553ab0a2c316794221e79779fb1bd40d2 - UTIL: DN sanitization

Comment 60 Pavel Březina 2020-10-06 09:56:41 UTC

Pushed PR: https://github.com/SSSD/sssd/pull/5281

* `sssd-1-16`
    * e5ae7bab88603fd64a27bcf59d4bba1503835ad0 - intg: allow member DN to have a different case
    * a63a22284d85d54514247549e94212e466b5c93c - ldap: use member DN to create ghost user hash table
    * f31005a076fa470d3b1a1b6117f306355ae6d97b - UTIL: Use sss_sanitize_dn where we deal with DN 2
    * a960d66daaa1e0fb0602958452c6b40ee714f3b2 - UTIL: Use sss_sanitize_dn where we deal with DN
    * a20e08524d58c52ebfb5b971b361a91d911825cf - UTIL: DN sanitization